Porvoo outer archipelago

Country/territory: Finland

IBA Criteria met: A4i, B1i, B1ii, B2, C2, C6 (2000)
For more information about IBA criteria please click here

Area: 22,570 ha

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2010 medium favourable medium
For more information about IBA monitoring please click here

Site description
A large offshore archipelago in the middle part of the Gulf of Finland. The area holds many islands with rocky or stony shores. The largest of the islands are forested, with areas of meadows and Juniperus stands.

Key biodiversity
An important breeding area for archipelagic avifauna, especially for Sterna caspia.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Porvoo outer archipelago. Downloaded from on 01/02/2023.